Question

I try to set the width and height in java code as below:

 ViewGroup.LayoutParams params=new LayoutParams(500,200);
 mMapView.setLayoutParams(params);
 mMapView.invalidate();

but some error occurs when execute the code:

02-02 06:04:20.126: E/AndroidRuntime(1043): java.lang.ClassCastException: android.view.ViewGroup$LayoutParams

Answer 1

change

ViewGroup.LayoutParams params=new LayoutParams(500,200);

to

com.google.android.maps.MapView.LayoutParams params=new com.google.android.maps.MapView.LayoutParams(500,200);